Unio maculatus Conrad, 1834
Conrad, 1834. New Fresh-Water Shells: 30, pl. 4, fig. 4.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 252.
(homonym of Unio (Elliptio) nigra var. maculata Rafinesque, 1820; renamed Pleurobema conradi Vanatta, 1915)

Pleurobema (s.s.) maculata — Simpson (1900)
Pleurobema (s.s.) maculatum — Simpson (1914)
Pleurobema conradi — Vanatta (1915)
Lexingtonia dolabelloides conradi — Ortmann (1918)
Lexingtonia conradi — Ortmann & Walker (1922)
Quadrula (Pleuronaia) valida — Frierson (1927), Haas (1969)
Lexingtonia dolabelloides — Burch (1975)
Pleuronaia dolabelloides — Williams et al. (2008)

Unio dolabelloides Lea, 1840
Lea, 1840. Proc. Amer. Phil. Soc. 1: 288.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 215 [53], pl. 15, fig. 31.
Type(s): HOLOTYPE USNM_85828, Holston R., Tenn.

Pleurobema (s.s.) dolabelloides — Simpson (1900), Simpson (1914)
Lexingtonia dolabelloides — Ortmann (1918), Ortmann & Walker (1922), Ortmann (1924), Ortmann (1925), Stansbery (1970), ... Grobler et al. (2006), Graf & Cummings (2007), Manendo et al. (2008), Cummings & Graf (2010), Klymus et al. (2020)
Quadrula (Pleuronaia) dolabelloides — Frierson (1927), Haas (1969)
Lexingtonia dollabelloides [sic] — Zanatta & Murphy (2006)
Pleuronaia dolabelloides — Williams et al. (2008), Bogan (2010), IUCN (2012), Campbell & Lydeard (2012), Campbell & Lydeard (2012), ... Inoue et al. (2018), Inoue et al. (2020), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023)
Lexingtonia dolabelloides dolabelloides — ITIS (2012)

Unio mooresianus Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 9: 83.
Lea, 1866. Jour. Acad. Nat. Sci. 6 [O. 11]: 39 [43], pl. 14, fig. 37.
Type(s): HOLOTYPE USNM_84695, Tuscumbia, Ala.

Pleurobema (s.s.) dolabelloides — Simpson (1900), Simpson (1914)
Lexingtonia dolabelloides — Ortmann (1918), Ortmann (1925), Burch (1975), Parmalee & Bogan (1998)
Quadrula (Pleuronaia) dolabelloides — Frierson (1927), Haas (1969)
Pleuronaia dolabelloides — Williams et al. (2008)

Unio thorntonii Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 9: 83.
Lea, 1866. Jour. Acad. Nat. Sci. 6 [O. 11]: 38 [42], pl. 14, fig. 36.
Type(s): HOLOTYPE USNM_85829, Tuscumbia, Alabama.

Pleurobema (s.s.) dolabelloides — Simpson (1900), Simpson (1914)
Unio thorntonii — de Gregorio (1914)
Lexingtonia dolabelloides — Ortmann (1918), Ortmann (1925), Burch (1975), Parmalee & Bogan (1998)
Quadrula (Pleuronaia) dolabelloides — Frierson (1927), Haas (1969)
Pleuronaia dolabelloides — Williams et al. (2008)

Unio mundus Reeve, 1864
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 16, sp. 72.
(misidentified reference to Unio mundus Lea, 1857)

Pleurobema (s.s.) holstonensis — Simpson (1900)
Pleurobema (s.s.) holstonense — Simpson (1914)
Quadrula (Pleuronaia) dolabelloides — Frierson (1927), Haas (1969)

Unio circumactus Lea, 1871
Lea, 1871. Proc. Acad. Nat. Sci. 23: 192.
Lea, 1874. Jour. Acad. Nat. Sci. 8 [O. 13]: 15 [19], pl. 4, fig. 11.
Type(s): FIGURED SYNTYPE USNM_85830, Holston R., E. Tenn.

Pleurobema (s.s.) dolabelloides — Simpson (1900), Simpson (1914)
Lexingtonia dolabelloides — Ortmann (1918), Ortmann (1925), Burch (1975), Parmalee & Bogan (1998)
Quadrula (Pleuronaia) dolabelloides — Frierson (1927), Haas (1969)
Pleuronaia dolabelloides — Williams et al. (2008)

Unio recurvatus Lea, 1871
Lea, 1871. Proc. Acad. Nat. Sci. 23: 192.
Lea, 1874. Jour. Acad. Nat. Sci. 8 [O. 13]: 10 [14], pl. 2, fig. 6.
Type(s): FIGURED SYNTYPE USNM_85800, Holston R., Tenn.

Pleurobema (s.s.) dolabelloides — Simpson (1900), Simpson (1914)
Lexingtonia dolabelloides — Ortmann (1918), Parmalee & Bogan (1998)
Quadrula (Pleuronaia) dolabelloides — Frierson (1927), Haas (1969)
Pleuronaia dolabelloides — Williams et al. (2008)

Unio subglobatus Lea, 1871
Lea, 1871. Proc. Acad. Nat. Sci. 23: 191.
Lea, 1874. Jour. Acad. Nat. Sci. 8 [O. 13]: 7 [11], pl. 1, fig. 3.
Type(s): FIGURED SYNTYPE USNM_85823, Florence, Ala.

Pleurobema (s.s.) subglobata — Simpson (1900)
Pleurobema (s.s.) dolabelloides — Simpson (1914)
Lexingtonia dolabelloides — Ortmann (1918), Ortmann (1924), Ortmann (1925), Burch (1975), Parmalee & Bogan (1998)
Pleuronaia dolabelloides — Williams et al. (2008)

Unio tornhatonii [sic] var. duckensis de Gregorio, 1914
de Gregorio, 1914. Il Nat. Siciliano 2: 50, pl. 11, figs. 2a-c.
(intro'd as intra-sp. of Unio thorntonii Lea, 1857)

Unio thorntonii var. duckensis — de Gregorio (1914)

Pleurobema conradi Vanatta, 1915
Vanatta, 1915. Proc. Acad. Nat. Sci. 67: 559.
(new name for Unio maculatus Conrad, 1834)

Pleurobema conradi — Vanatta (1915)
Lexingtonia dolabelloides conradi — Ortmann (1918), Ortmann (1924), Ortmann (1925), ITIS (2012)
Lexingtonia conradi — Ortmann & Walker (1922)
Quadrula (Pleuronaia) valida — Frierson (1927), Haas (1969)
Lexingtonia dolabelloides — Burch (1975), R.I. Johnson (1980), Parmalee & Bogan (1998)
Pleuronaia dolabelloides — Williams et al. (2008)

Margaron (Unio) dollabelloides Lea, 1852
Lea, 1852. Synopsis Fam. Naiades: 35.
Lea, 1870. Synopsis Fam. Naiades: 56.
‘Lea’ B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [2].
‘Lea’ Zanatta & Murphy, 2006. MPE 41(1): 197 [as ‘Lexingtonia’].
(error for Unio dolabelloides Lea, 1840)

Unio moorenianus Paetel, 1890
‘Lea’ Paetel, 1890. Cat. Conch.-Samml. 3: 159.
(error for Unio mooresianus Lea, 1857)

Pleurobema (s.s.) dolabelloides — Simpson (1900), Simpson (1914)

Unio tornhatonii de Gregorio, 1914
‘Lea’ de Gregorio, 1914. Il Nat. Siciliano 2: 50.
(error for Unio thorntonii Lea, 1857)